Machine Recycling Discussion and Moderated Newsgroup > Separate Parts
> Mechanical Control Parts
> North
> Used
> Coltec qsi-245 50 h.p. rotary screw compressor
Coltec qsi-245 50 h.p. rotary screw compressor
COLTEC QSI-245 50 H.P. ROTARY SCREW COMPRESSOR
The Quincy Power$ync is a unique design that gives the compressor the ability to function as a base load machine AND a part-load machine. When you don t need the entire capacity of the compressor, the Power$ync quickly decreases the air flow output. The compressor is able to vary the output using specially designed lift valves (see photos above), controlled by the Power$ync controller. These patented lift valves adjust automatically to match the demand of your application!
The Quincy QSI Rotary Screw Compressor combines around-the-clock dependability with one of the most efficient, positive displacement airends available. Oversized rotors, low RPM's, and the Power$ync advanced controller ensures maximum air production using minimum horsepower, witch means bottom-line productivity.
Backed by an available five or ten year airend warranty, the Quincy QSI features an exclusive Triplex bearing arrangement, a triple lip shaft seal, and boasts an airend life of over 130,000 hours. This is the standard of True Blue Reliability that perpetuates the value of Quincy.
The Quincy QSI airend is the result of over 30 years of proven performance and machining expertise. Starting with a state-of-the-art rotor profile, each rotor is measured using a polar coordinate measuring machine - with an allotted tolerance of 0.0005 of an inch.
Beyond this highly efficient rotor profile and unparalleled precision manufacturing standards, Quincy rotors are oversized - almost 62% larger than most competitors. And the Quincy QSI is designed to turn these oversized rotors at a slow 1,800 rpm. This means long compressor life and increased efficiency.
Every Quincy QSI features a direct coupling drive and C-faced motors with a flanged connection to the airend on models through the Quincy QSI 750. This flanged drive system ensures a permanent alignment and a simple drive system.
An oversized, heavy-duty inlet filter and oversized fluid and aftercoolers are standard on the Quincy QSI. With these and other standard features designed to work in harsh operating conditions, the Quincy QSI is truly one of the most reliable compressors available.
* Axial flow inlet housing
* Triplex discharge end bearings
* Warning and shutdown annunciator
* 460 or 575 volt, 3-phase, 60hz, 1800rpm motor
* Full-voltage magnetic starter, mounted and wired, 460 volt (through QSI 750)
* Flexible dropout coupling with OSHA guard
* Heavy-duty structural steel base
* Two-stage air/fluid separation
* Full-flow, 10-micron fluid filter
* Heavy-duty intake filter
* Auto-dual control with modulation
* Percent capacity gauge
* QuinSyn synthetic fluid
* 5-degree approach aftercooler with moisture separator and trap
* Package discharge check valve
* CFM @ 110 PSIG full load: 245
* M3/MIN @ 7.72 KG/CM2: 6.77
Technical Data QSI Series Compressors
@ 140 PSIG-9,84 KG/CM2-Maximum operating pressure
WN-Water-cooled without cabinet
WC-Water-cooled with cabinet
AN-Air-cooled without cabinet
AC-Air-cooled with cabinet
Product: 50 H.P. ROTARY SCREW AIR COMPRESSOR
